成品保护的措施一般包括( )。
A．防护、包裹、覆盖、封闭B．防护、隐蔽、覆盖、包裹C．隐蔽、封闭、覆盖、包裹D．防护、隐蔽、封闭、包裹
参考答案：A
Don’t worry. You can _____he ‘ll turn up on time. He always keeps his promises.
A．depend on
B．depend on it that
C．depend on that
D．depend upon
市政公用事业特许经营通常采用( )的招标方式。
A．邀请招标
B．公开招标
C．委托招标
D．自行招标
